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Introduction to the
Mahmoud AlferihatAmman, 29 -07 December 2015
Soil Survey and Land
Management
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History of Soil Survey
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Soils information challenging because:
Outdated methods
Several classification systems
Different lab methodologies
Pre-computer logic
What is the rate of soil carbon loss in the Region?
What is the effect on food production and human
health?
How much will it cost to reverse it?
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Table of Contents- Manual
Database and Management system
Geographical Information Systems-GIS
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Activities
Data Entry
Data Checking
Data maintenance of soil database
Data retrieval
Data security – backup and archive
Digitizing maps
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Introduction , Soil database Structure
Sources for data are:
Filed
Lab
Computer
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Sources for data are:
Soil Surface Data
Horizon data – pit description
Horizon data – Bore description
Analytical Data – Chemical and Physical
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Satellite images
Digital
terrain models
Climate surfaces
Legacy data:
maps & soil profiles
Legacy Data and Soil Covariates
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Methodology for preparation of data
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Example: Region 15 represents Mafraq area with
20 soil mapping units at scale 1:250000
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Unit : 17The big area of unit :Yermic CambisolCalcaric CambisolWRB system
Jordan Soil map
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Jordan Profile Distribution
1479 profiles
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Syria Soil map
Unit : 14The big area of unit :Aridic Calcisols
WRB system
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Palestine Soil map
Unit : 18The big area of unit :Eutric Luvisols
WRB system
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Lebanon Soil map
Unit : 14The big area of unit :Lithic Leptosols
WRB system
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Surface-sealed sandy soils
Burkina Faso
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Erosion rate (tons/ha/year)Warburgia ugandensis pedestals, Tugen Hills, Kenya (2006) ~ 100 yrs. old.
Markus Walsh
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Soil Erosion
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Nutrient Deficiencies
N
P
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Water Storage/Erosion Control
Mountain Province Philippines
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Thank You